Note: some images may be blank or "broken" at times; at night and on cloudy days (at least) for Earthbound observatories; at various intentional and accidental "down-times" for satellite-based solar telescopes.

Red light image of the Sun at a wavelength of 656.3 nm. These emissions come from hydrogen atoms in the lower part of the Sun's chromosphere, within 1,700 km of the Sun's "surface". Astronomers call this wavelength band the "hydrogen alpha" emission line. Image courtesy of Big Bear Solar Observatory/New Jersey Institute of Technology.

Image of the Sun's corona in red visible light and infrared radiation at wavelengths between 700 and 950 nm (7,000-9,500 ångströms). This coronagraph has a central black disk that covers the "body" of the Sun, creating an artificial eclipse and revealing the solar atmosphere. Image courtesy of HAO's Mauna Loa Solar Observatory.

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